I'm getting to the stage where I need to start thinking about repainting or cleaning up the interior on the -3. It was originally painted with automotive DuPont Nason light glossy gray, which looked great but has taken a beating over 400 flight hours + being tossed around in a tornado, disassembled, hauled around, and worked on for 3 years. Anyone have decent luck with rattle cans? How do you clean/prep the surfaces in such a tight area?